Supplemental cash flow information (Tables)

3 Months Ended

Mar. 31, 2014

Supplemental Cash Flow Elements [Abstract]

Schedule of supplemental cash flow information

	Three months ended
	March 31, 2014	March 31, 2013
	$’000	$’000
Cash paid during the period for:
Interest	7,765	5,861
Income taxes, net of refunds	4,470	5,697